Octadecamethylcyclononasiloxane
TL;DR: Octadecamethylcyclononasiloxane (CAS 556-71-8) is a chemical compound with molecular formula C18H54O9Si9 and molecular weight 666.17 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.
2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18-octadecamethyl-1,3,5,7,9,11,13,15,17-nonaoxa-2,4,6,8,10,12,14,16,18-nonasilacyclooctadecane
Also Known As: OCTADECAMETHYLCYCLONONASILOXANE, Cyclononasiloxane, octadecamethyl-, Octadecamethylnonasiloxane, CYCLOMETHICONE 9, Octadeamethyl-cyclononasiloxane
| Molecular Formula | C18H54O9Si9 |
|---|---|
| Molecular Weight | 666.17 g/mol |
| LogP | 6.47 |
| Topological Polar Surface Area | 83.1 Ų |
| Hydrogen Bond Donors | 0 |
| Hydrogen Bond Acceptors | 9 |
| Rotatable Bonds | 0 |
| Exact Mass | 666.1691 |
| Heavy Atoms | 36 |
| Complexity | 517.0 |
Chemical Identifiers
| CAS Number | 556-71-8 |
|---|---|
| SMILES | C[Si]1(O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)C |
| InChIKey | ISXOGOLHEGHGQF-UHFFFAOYSA-N |
Patent-Derived Application Labels
Derived from 3 IPC patent classification(s) across the SureChEMBL global patent database.
Product Overview
Octadecamethylcyclononasiloxane (CAS 556-71-8), with molecular formula C18H54O9Si9 and molecular weight 666.17 g/mol. IUPAC: 2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18-octadecamethyl-1,3,5,7,9,11,13,15,17-nonaoxa-2,4,6,8,10,12,14,16,18-nonasilacyclooctadecane.
Chemical Property Profile of Octadecamethylcyclononasiloxane
Property Insights of Octadecamethylcyclononasiloxane
The XLogP value of 6.47 indicates that Octadecamethylcyclononasiloxane is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 83.1 Ų falls within the moderate polarity range, balancing permeability and solubility for Octadecamethylcyclononasiloxane. Following Lipinski's Rule of Five, Octadecamethylcyclononasiloxane has 0 hydrogen bond donor(s) and 9 hydrogen bond acceptor(s), which may warrant consideration for formulation optimization.
Frequently Asked Questions
Frequently Asked Questions
What is the CAS number of Octadecamethylcyclononasiloxane?
The CAS number of Octadecamethylcyclononasiloxane is 556-71-8.
What is the molecular formula of Octadecamethylcyclononasiloxane?
The molecular formula of Octadecamethylcyclononasiloxane is C18H54O9Si9.
What is the molecular weight of Octadecamethylcyclononasiloxane?
The molecular weight of Octadecamethylcyclononasiloxane is 666.17 g/mol.
Where can I buy Octadecamethylcyclononasiloxane?
You can request a quote for Octadecamethylcyclononasiloxane directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.
Does KEHONG BIO offer custom synthesis for Octadecamethylcyclononasiloxane?
Yes, KEHONG BIO provides custom synthesis services for Octadecamethylcyclononasiloxane and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.